By what approximate factor is the intensity of an earthquake with magnitude 5 point 4 greater than an earthquake with magnitude 5 point 3 ? cap m is equal to the log of open paren the fraction with numerator l and denominator l sub 0 close paren cap m is equal to the magnitude of an earthquake cap i is equal to the intensity of an earthquake cap i sub 0 is equal to the smallest seismic activity that can be measured, which is 1